ÿþ<HTML> <HEAD> <TITLE>PTC Insert Carriers for DSP Semiconductor Wafers - Patented design, engineered by PR Hoffman for all planetary machines!</TITLE> <META NAME="keywords" content="insert carriers, PR Hoffman, P.R., speedfam, peter wolters ag, spitfire, lapmaster, carlan, fujikoshi, dae chang machinery, melchiorre, steel, stainless, NKT, semiconductor, wafer, silicon, germanium, gallium arsenide, silicon-carbide"> <META NAME="description" content="Insert carriers (wafer workholders) manufacturered by PR Hoffman are an exclusive patented design. Insert carriers are commonly used for processing 100 mm, 125 mm, 150 mm, 200 mm, and 300 mm silicon wafers. "> </HEAD> <BODY BACKGROUND="gear.gif"> <CENTER> <TABLE BORDER=0 WIDTH="600" CELLPADDING=5 CELLSPACING=5> <TR> <TD><center> <H2>PTC<sup>®</sup> &nbsp; DSP Insert Carriers<br>Precision Thickness Double-Side Polishing </h2></center> <br> <P><img src="white.gif" width=227 height=15><br><a href="/literature/PTC.pdf"><IMG SRC="PTC-DSP-Inserts.gif" WIDTH=227 ALT="PTC DSP Insert Carrier Brochure" align=left border=0></a><img src="white.gif" width=8 height=570 align=left> <font size=4 color="#1111ff"><strong>PTC<font size=-1><sup>®</sup></font> INSERT CARRIERS</strong></font><br> PR Hoffman Machine Products offers a new product for manufacturers who require precision carrier thickness for their manufacturing process. <br> <p>Our line of <b>PTC</b><sup><font size=-1>®</font></sup> Insert Carriers for DSP Polishers is designed specifically for manufacturers who require precision carrier thickness. We can produce carriers to your exact specifications. PR Hoffman provides a level of precision never before possible. <br><br> <font size=3><strong>World s Leading Insert Carriers</strong></font><br> PR Hoffman is recognized as a leading innovator and manufacturer of Insert Carriers for the semiconductor wafer industry. Our customers report longer life and better TTV using our patented Insert Carriers. </p> <p> <font size=3><strong>Custom Designs</strong></font><br> PR Hoffman generates a custom drawing for customer review and approval before any products are made. This added service insures that our customers receive precisely the design needed for their process, on every order. </p> <P><font size=3><strong>Custom Thickness</strong></font><br> PR Hoffman s exclusive thinning process allows our customers to specify their nominal Target thickness and select the exact tolerance class <b>PTC</b><sup>®</sup> Insert Carrier that is best suited to their requirements.</P><br> <P><center><ul><LI><b>PTC<font size=-1><sup>®</sup></font>-1</b> &nbsp; Target ±2.5µm<br> <LI><b>PTC<font size=-1><sup>®</sup></font>-2</b> &nbsp; Target ±3.0µm<br> <LI><b>PTC<font size=-1><sup>®</sup></font>-3</b> &nbsp; Target ±3.5µm<br> <LI><b>PTC<font size=-1><sup>®</sup></font>-4</b> &nbsp; Target ±5.0µm</center></P> <P> We inventory a large variety of stainless and spring steels and can make custom thickness <b>PTC</b><sup>®</sup> Insert Carriers from 22 inches up to 34 inches in diameter, for virtually any double-sided polishing machine made in the world. &nbsp;&nbsp; If you are processing high value DSP wafers from 100 mm to 300 mm which require precision thickness Insert Carriers, we can custom engineer a <b>PTC</b><sup>®</sup> carrier to meet your needs. Please contact <A HREF="http://www.prhoffman.com/4.html">PR Hoffman Machine Products</A>, to discuss your <A HREF="news/insertcarrier.htm"> DSP Insert Carrier</A> requirements.</P> <UL><font size=-1> <li><a href="../literature/PTC.pdf"><b>PTC</b><sup>®</sup> Insert Carrier Brochure &quot;.pdf&quot;</a></li> <li>|<u> <a href="../cn/PTC.pdf">-NýV</a> | <a href="../jp/PTC.pdf">åe,g</a> | <a href="../gy/PTC.pdf"> Deutsche </a>| <a href="../fr/PTC.pdf"> Français </a> | <a href="../kr/PTC.pdf">\Õm­´Å</a> </u>|</li> </font></UL><br> <center><a href="http://www.prhoffman.com/news"><font face=arial color=black><strong>http://www.prhoffman.com/news</strong></font></a></center> </TD> </TR> </TABLE> </CENTER> <!-- This insert carriers information (c) 1999-2007 PR Hoffman - designed by evansd@prhoffman.com --> <br><img src="white.gif" width=40 height=63 align="left"><a href="http://www.prhoffman.com/site-map.htm"><IMG SRC="image14.gif" WIDTH=256 HEIGHT=63 ALIGN=Left ALT="Insert machine look for PR Hoffman!" border=0></a><b>&nbsp;&nbsp;<br><font face="arial,helvetica" size="-1"> &nbsp;&nbsp;1517 Commerce Ave., Carlisle, PA &nbsp;&nbsp;17015 <br>&nbsp;&nbsp;Phone: +1 (717) 243-9900 &nbsp;&nbsp;&nbsp;&nbsp; Fax: +1 (717) 243-4542<br> &nbsp;&nbsp;Email: &nbsp;<a href="mailto:prhoff@prhoffman.com?Subject=Insert Carriers">prhoff@prhoffman.com</a> </font></b> </BODY> </HTML>